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Vishay General Semiconductor - Diodes Division P6SMB180A-M3/5B
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- Part No.:
- P6SMB180A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180A-M3/5B.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,069
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Product details
Overview
P6SMB180A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 180 V standoff voltage (VWM), 246 V maximum clamping voltage (VC) at 2.4 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform.
For engineers reviewing the P6SMB180A-M3/5B datasheet, P6SMB180A-M3/5B pinout, P6SMB180A-M3/5B application, or P6SMB180A-M3/5B equivalent, this device serves as a robust, halogen-free, RoHS-compliant transient protection solution for automotive-grade and industrial signal-line applications requiring fast response time, low incremental surge resistance, and AEC-Q101 qualification support via M3 suffix variants.
Technical Context
The P6SMB180A-M3/5B operates as a unidirectional avalanche diode with a cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown behavior and high reliability under repetitive surge conditions. Its thermal resistance (RθJA = 100 °C/W) and junction temperature range (–65 °C to +150 °C) enable operation in demanding ambient environments without active cooling.
It delivers precise transient suppression with a breakdown voltage (VBR) of 171–189 V at 1.0 mA test current, a temperature coefficient of 0.108 %/°C, and <1.0 μA reverse leakage at VWM - ensuring minimal standby power loss while maintaining tight clamping performance during ESD or surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 154 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR (Breakdown Voltage) | 171–189 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 246 V at IPPM = 2.4 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy-handling capacity per IEC 61000-4-5 standard waveform; enables single-event surge survival. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Negligible standby current draw; critical for low-power sensor and battery-backed systems. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive or high-temperature industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.205" footprint; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards. Meets MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or lower-potential node in unidirectional TVS configuration. | Provides low-impedance path to ground during reverse-transient clamping; must be routed with minimal inductance for effective surge diversion. |
| Cathode | Current exit terminal in forward bias; marked with band; connects to protected line (e.g., signal or power rail). | Defines polarity-sensitive placement - reversal causes failure to clamp; required for correct transient shunting direction in DC-biased lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 Level 4 surge immunity testing without derating in standard PCB layouts. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure; eliminates risk of junction corrosion. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing and end-of-life recycling requirements. |
| Fast response time (<1.0 ns) | Clamps transients before IC damage thresholds are exceeded; critical for protecting high-speed interfaces like CAN, LIN, or sensor analog front-ends. |
| AEC-Q101 qualified variant available | Supports automotive subsystems (e.g., body control modules, ADAS sensors) where qualification to stress-test standards is mandatory. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control units exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before they reach precision analog circuitry. Use Value: Prevents ADC saturation and latch-up during 100 V/50 ms load-dump events while maintaining ≤1.0 μA leakage to avoid signal offset errors. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring-induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff-rated TVS on each optocoupler input leg to absorb >600 W surges without degrading isolation barrier integrity. Use Value: Enables reliable operation across 100,000+ surge cycles per channel while preserving 3 kV RMS isolation rating and meeting IEC 61000-4-4 Level 3. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
|
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul links subjected to lightning-induced common-mode transients on twisted-pair cabling. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on A/B differential lines referenced to local ground, providing symmetric clamping. Use Value: Limits differential-mode overshoot to <250 V during 10/1000 μs surges, preventing transceiver latch-up and maintaining >1 Mbps data integrity. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders) during PWM commutation. IC Role / Device Role / Timing Role: TVS mounted across motor terminals to clamp inductive kickback before it couples into MCU power rails or EMI filters. Use Value: Eliminates need for snubber RC networks; reduces board space by 40% and meets CISPR 32 Class B conducted emissions limits without added filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ180A | Same VWM (154 V), VC = 246 V, but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4; preferred only where board area is constrained and surge severity is ≤Level 3. | Select SMAJ180A only when PCB real estate is critical and thermal management allows higher junction rise; verify derating curves for ambient >85 °C. |
| 1.5SMC180A | Identical electrical specs (VWM, VBR, VC, PPPM), but larger SMC (DO-214AB) package (higher power handling margin, RθJA = 65 °C/W). | Better thermal performance in high-duty-cycle or stacked-layout applications; requires larger pad area and may not fit dense automotive modules. | Choose 1.5SMC180A when sustained surge repetition or elevated ambient temperatures (>105 °C) demand lower thermal resistance; confirm layout clearance for 0.280" width. |
Compared with SMAJ180A and 1.5SMC180A, the P6SMB180A-M3/5B offers optimal balance of 600 W surge capability, SMB footprint compatibility with mainstream automotive and industrial PCBs, and halogen-free compliance - making it the default choice for new designs targeting AEC-Q101 readiness and JEDEC-standard reflow profiles.
Availability
P6SMB180A-M3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line protection, and consumer appliance motor control requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB180A-M3/5B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - delivering consistent clamping performance, AEC-Q101 qualification paths, and standardized SMB packaging for seamless integration.
FAQ
What is the maximum clamping voltage of the P6SMB180A-M3/5B under a 10/1000 μs surge?
The P6SMB180A-M3/5B has a maximum clamping voltage (VC) of 246 V when subjected to its rated peak pulse current of 2.4 A using the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and represents the upper voltage limit imposed on the protected circuit during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6SMB180A-M3/5B AEC-Q101 qualified?
The P6SMB180A-M3/5B itself is not AEC-Q101 qualified; however, Vishay offers AEC-Q101 variants under the HM3 suffix (e.g., P6SMB180AHM3_B). The "M3" in P6SMB180A-M3/5B denotes halogen-free, RoHS-compliant construction - a prerequisite for automotive use but not equivalent to full qualification. Customers requiring AEC-Q101 must specify the HM3_B or HM3_I ordering code.
What does the "/5B" suffix indicate in P6SMB180A-M3/5B?
The "/5B" suffix in P6SMB180A-M3/5B specifies the packaging format: 13-inch diameter plastic tape and reel containing 3200 units. This differs from "/52", which denotes a 7-inch reel with 750 units. The "5B" configuration supports high-volume SMT assembly lines requiring extended reel life and reduced changeover frequency during automated placement.
Can the P6SMB180A-M3/5B be used in bidirectional applications?
No - the P6SMB180A-M3/5B is strictly a unidirectional TVS diode, as indicated by the "A" suffix (versus "CA" for bidirectional versions like P6SMB180CA). Its cathode band marking and asymmetric IV curve mean it conducts only in reverse bias; using it in bidirectional configurations risks failure during positive-going transients. For bidirectional protection, select the CA-suffixed variant.
What is the thermal resistance junction-to-ambient (RθJA) for the P6SMB180A-M3/5B?
The P6SMB180A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking and defines the temperature rise above ambient per watt of dissipated power - essential for calculating safe operating area under repetitive surge conditions.
P6SMB180A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 2.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB180A-M3/5B FAQ
1.How can I place an order for P6SMB180A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180A-M3/5B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB180A-M3/5B reliable?
The price and inventory of P6SMB180A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB180A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB180A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180A-M3/5B?
P6SMB180A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180A-M3/5B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB180A-M3/5B?
For technical support, including P6SMB180A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180A-M3/5B requirements.
6.How does Aetrix verify that P6SMB180A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB180A-M3/5B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB180A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB180A-M3/5B?
All P6SMB180A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180A-M3/5B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB180A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB180A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB180A-M3/5B Tags
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